The fat LTE pipe carrying the video data packets is important here too. The high bandwidth will reduce lost packets to the extent that artifacting, skips, and jitter in the video become very rare. The Charge has to bring in high-definition video streams intact and the AMOLED screen to display the video well. That's a pretty compelling combination.

As for the "outdoor visibility" claim, I'm a believer here too. I held the Charge and the ThunderBolt side-by-side in direct sunlight, pulled up the phone dialer on each, and saw that the Charge's screen was indeed easier to see. I could see the ThunderBolt's dialer, but had to squint a little.

The Overlay

Samsung puts its own TouchWiz interface design over the Android operating system in the Charge and other Samsung phones. This overlay presents to the user all the content (and more) that the normal Android interface does, but the presentation is a little more crowded and noisy. I personally prefer HTC's Sense UI overlay, which looks more elegant and well-organized to me, but that may be purely a matter of taste.

Camera